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You don't need Raspberry or Arduino at all to control camera shutter with a sound. A simple circuit with one transistor or opto-coupler is enough. Fore reference see: http://www.doc-diy.net/photo/eos_wired_remote/
You don't need Raspberry or Arduino at all to control camera shutter with a sound. A simple circuit with one transistor or opto-coupler is enough. Fore reference see: http://www.doc-diy.net/photo/eos_wired_remote/